Shoutout to my neighbor Frank for talking me out of that foam insulation idea
I was dead set on spraying closed cell foam into my basement walls last fall. Frank, who lives two doors down and has been fixing up old houses for 30 years, told me to hold off. He said I'd regret it if I ever had a leak because the foam traps moisture against the foundation. I didn't listen at first, but he brought me over to his place and showed me a spot in his own basement where the foam had actually caused rot behind the drywall. So I went with rigid foam boards instead, with a vapor barrier. Three months later we got that big rainstorm in November and a crack in the foundation seeped water. The boards came right out, I dried everything, and put them back. Has anyone else had good luck with rigid foam over spray in a damp basement?